A beaker containing water is heated, and thermal energy is transferred through the water by convection. What change occurs in the water’s density as it is heated, and what movement does the water make?
- AThe density decreases and the heated water moves downwards.
- BThe density decreases and the heated water moves upwards.
- CThe density increases and the heated water moves downwards.
- DThe density increases and the heated water moves upwards.